690132045 has 8 divisors (see below), whose sum is σ = 1104211296. Its totient is φ = 368070416.

The previous prime is 690131993. The next prime is 690132059. The reversal of 690132045 is 540231096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 690132045 - 2¹³ = 690123853 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23004387 + ... + 23004416.

It is an arithmetic number, because the mean of its divisors is an integer number (138026412).

Almost surely, 2^690132045 is an apocalyptic number.

It is an amenable number.

690132045 is a deficient number, since it is larger than the sum of its proper divisors (414079251).

690132045 is a wasteful number, since it uses less digits than its factorization.

690132045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46008811.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 690132045 is about 26270.3643865098. The cubic root of 690132045 is about 883.7119569072.

The spelling of 690132045 in words is "six hundred ninety million, one hundred thirty-two thousand, forty-five".